This stretch targets the psoas muscle specifically. It is a great stretch for runners.

This stretch targets the rectoris femoris muscle, part of the hip flexor group. It is a good running stretch especially after the bike leg in triathlon. 

This exercise is a great way to specifically stretch the biceps femoris part of the hamstring group.

This stretch specifically targets the latissimus dorsi muscle.

This great stretch can be used as part of a hip warm up - good for runners.

This is a great stretch targeting the gluteal muscles and sciatic nerve.